must pi
Verbe régulier : pi - pied- pied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must pi
you must pi
he must pi
we must pi
you must pi
they must pi 	I must be piing
you must be piing
he must be piing
we must be piing
you must be piing
they must be piing	I must have pied
you must have pied
he must have pied
we must have pied
you must have pied
they must have pied	I must have been piing
you must have been piing
he must have been piing
we must have been piing
you must have been piing
they must have been piing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not pi
you must not pi
he must not pi
we must not pi
you must not pi
they must not pi 	I must not be piing
you must not be piing
he must not be piing
we must not be piing
you must not be piing
they must not be piing	I must not have pied
you must not have pied
he must not have pied
we must not have pied
you must not have pied
they must not have pied	I must not have been piing
you must not have been piing
he must not have been piing
we must not have been piing
you must not have been piing
they must not have been piing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I pi?
must you pi?
must he pi?
must we pi?
must you pi?
must they pi? 	must I be piing?
must you be piing?
must he be piing?
must we be piing?
must you be piing?
must they be piing? 	must I have pied?
must you have pied?
must he have pied?
must we have pied?
must you have pied?
must they have pied? 	must I have been piing?
must you have been piing?
must he have been piing?
must we have been piing?
must you have been piing?
must they have been piing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not pi?
must you not pi?
must he not pi?
must we not pi?
must you not pi?
must they not pi? 	must I not be piing?
must you not be piing?
must he not be piing?
must we not be piing?
must you not be piing?
must they not be piing? 	must I not have pied?
must you not have pied?
must he not have pied?
must we not have pied?
must you not have pied?
must they not have pied? 	must I not have been piing?
must you not have been piing?
must he not have been piing?
must we not have been piing?
must you not have been piing?
must they not have been piing?